[amsat-bb] Re: Sat Dishes and P3E Q's

i8cvs domenico.i8cvs at tin.it
Wed Aug 11 11:48:36 PDT 2010

----- Original Message -----
From: "Ron Overdrive" <ronoverdrive at tehfurry.com>
To: <amsat-bb at amsat.org>
Sent: Wednesday, August 11, 2010 7:33 PM
Subject: [amsat-bb] Sat Dishes and P3E Q's

> I am curious how things are coming along with Phase 3 Express (P3E) as the
> current official websites don't tell me much. The last bit of updates seem
> to be from 2005 with an expected launch date of 2007 - 2008 which was 2 -
> years ago. Since there's no info about it being active I'm guessing P3E
> hasn't be launched yet.
> The reason I'm asking is because I came across 2 Dish Network dishes that
> friend had sitting in his junk room that he acquired from the previous
> of his home. One is a smaller dish labeled Dish 500 which I'm guessing is
> Ku-Band dish and a larger one labeled Dish Plus which I'm assuming is a
> C-band dish. As you probably have guessed I want to use these for AMSAT
> and I don't know much about parabolic dishes so all I have are guesses for
> what bands they work on so if anyone can point me in the right direction
> figure this out please do.

Hi Ron,

You don't mention wath is the diameter of your dishes and if they are prime
focus dishes or offset dishes.

By the way Ku-Band or C band dishes are good for P3E but in order to designe
the type of feed it is necessary to know the dish focus /diameter i.e the
F/D ratio.

For 2400 MHz on OSCAR-13 and AO40 I have used with good results a 4"
diameter prime focus dish with a F/D ratio of 0.45 and I plan to use the
same dish for P3E

73" de

i8CVS Domenico

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